State one observation which shows that atom is not indivisible
Chadwick discovered neutral particle present in an atom by bombarding light nuclei such as beryllium with alpha particles. This observation... View Article
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A locomotive of mass m starts moving so that its velocity varies according to the law v = a√s where a is a constant, and s is the distance covered. Find the total work performed by all the forces which are acting on the locomotive during the first t seconds after the beginning of motion.
Differentiating v(s) with respect to time dv/dt = (a/2√s)ds/dt = (a/2√s)a√s = a2/2 = w (As locomotive is in unidirectional... View Article
Human welfare is the subject of Economics. This statement is associated with which of the following economists? (A) Marshall (B) Pigou (C) Penson (D) All of these
All of these The statement ‘Human welfare is the subject of Economics’ is associated with Marshall, Pigou and Penson who... View Article
Complete the following sentence: Every point on the number line corresponds to a ______ number which may be either _____ or ______
We know that every point on the number line is real. Further all the real numbers are either rational or... View Article
The pension of a high court judge is charged to the (A) Consolidated Fund of India (B) Consolidated Fund of the state where he last served (C) Consolidated Funds of the different states where he has served (D) Contingency Fund of India
The pension of a High Court Judge is charged on the Consolidated Fund of India. Therefore, the correct option is... View Article
Which of the following are arranged from smallest unit to largest unit? (A) cm, m, mm, km (B) km, m, cm, mm (C) cm, mm, m, km (D) mm, m, cm, km (E) mm, cm, m, km
1 kilometer = 1000000 millimeter 1 meter = 1000 millimeter 1 centimeter = 10 millimeter Therefore the correct answer is... View Article
The four headed Lion capital from Ashoka’s pillar at ___________ is our National Emblem (A) Sanchi (B) Sarnath (C) Pataliputra (D) Ujjain
Sarnath The National Emblem of India is another version of the Lion Capital of Ashoka at Sarnath, conserved in the... View Article
The element with highest electron affinity among the halogens is: (A) F (B) Cl (C) Br (D) I
Cl The amount of energy released when an electron is added to a neutral atom to form an anion is... View Article
Water vascular system is the characteristic of which group of the following? (A) Porifera (B) Gtenophora (C) Echinodermata (D) Chordata
Echinodermata Water vascular system is a characteristic feature of the phylum Echinodermata. The water vascular system is a complex hydraulic... View Article
If a solid is dispersed in a liquid, the colloid is known as:(A) gel(B) sol(C) emulsion(D) none of the above
Answer: (B) sol The liquid state of a colloid solution is called sol. A Solid Sol is a colloidal solution with... View Article
Answer the following: (i) Write the general electronic configuration of halogens in the valence shell
The general electronic configuration of group 17 elements is ns2np5.
Private Sector Mutual Funds in India were permitted in (A) 1964 (B) 1993 (C) 1994 (D) 2001
Private Sector Mutual Funds in India were permitted in 1993. Therefore, the correct option is (B)
Exine of pollen grain is made up of (A) Pectocellulose (B) Ligno cellulose (C) Sporopollenin (D) Pollen kit
Sporopollenin The exine of the pollen grain is made up of sporopollenin. This material is highly resistant to high temperature,... View Article
On what belief are contingency theories of leadership based? (A) That there is single style of leadership appropriate to all managers (B) That there is no single style of leadership appropriate to all managers (C) That there is no single style of leadership appropriate to all situation (D) None of the above
That there is no single style of leadership appropriate to all managers Hence, the correct option is (B)
Name the plant hormone responsible for elongation of cells (A) Auxin (B) Gibberellin (C) Abscisic acid (D) Cytokinins
Auxin Auxin means to enlarge or increase, which used widely in the field of agriculture and horticulture. They induce cell... View Article
Which of the following are the two key concepts of Darwinian theory of evolution? (A) Genetic drift and mutation (B) Adaptive radiation and homology (C) Mutation and natural selection (D) Branching descent and natural selection
Branching descent and natural selection According to Darwin’s theory of evolution, nature selects the most suitable. Fitness is based on... View Article
Identify the wrong statement in the following Coulomb’s law correctly describes the electric force that (A) binds the electrons of an atom to its nucleus (B) binds protons and neutrons in the nucleus of an atom (C) binds atoms together to form molecules (D) binds atoms and molecules to form solids
binds protons and neutrons in the nucleus of an atom Since the Coulomb’s force applies between two charged bodies and... View Article
Classify each of the following as being either a p-type or an n-type semiconductor (i) Ge doped with In (ii) B doped with Si
(i) Ge is a 14th group element and In is a 13th group element. An electron deficit hole created, when... View Article
Enumerate some important features of the Himalayan rivers
Following are the important features of Himalayan rivers 1. Most of the Himalayan rivers are in perennial in nature. This... View Article
The highest oxidation state of Cr will be (A) 2 (B) 3 (C) 4 (D) 6
6 The value of highest oxidation state of chromium is 6. Electronic configuration of Cr = [Ar]4s13d5. It can lose... View Article
